The best times to visit Roseau for ideal weather are

December 17th to April 8th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Roseau Travel Info

Weather in Roseau

Temperature

Average temperatures in Roseau vary very little. Considering humidity, temperatures feel hot for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 14th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Roseau, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally mid to late August where highs are regularly around 90.6°F (32.6°C) with temperatures rarely dropping below 79.8°F (26.6°C) at night.

Roseau Temperatures (Fahrenheit)

Key
High
Average
Low

Roseau Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Roseau Perceived Temperature (F)

Key
High
Average
Low

Roseau Perceived Temperature (C)

Key
High
Average
Low

 

Average Roseau Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 82.9 79.7 75.7
Feb 83.1 79.7 75.1
Mar 83.2 79.4 74.3
Apr 84 80.9 76.7
May 85.3 82.6 79.4
Jun 87.9 84.3 79.2
Jul 89 84.9 78.7
Aug 89.5 85.7 79.5
Sep 88.9 84.6 77.6
Oct 86.8 83.2 78.4
Nov 85.1 82.4 78.6
Dec 83.1 80.2 76.2

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 28.3 26.5 24.3
Feb 28.4 26.5 23.9
Mar 28.4 26.3 23.5
Apr 28.9 27.2 24.8
May 29.6 28.1 26.3
Jun 31.1 29.1 26.2
Jul 31.7 29.4 25.9
Aug 31.9 29.8 26.4
Sep 31.6 29.2 25.3
Oct 30.4 28.4 25.8
Nov 29.5 28 25.9
Dec 28.4 26.8 24.6

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Roseau are February, January, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid February. For example, on the week of February 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid December with an average of 4 days of significant precipitation the week of December 10th.

When can you find snow in Roseau? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Roseau.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Roseau (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 11% 0 0.8
Feb 10% 0 0.7
Mar 13% 0 1.6
Apr 19% 0 3.2
May 26% 0 6.1
Jun 21% 0 4.1
Jul 18% 0 3
Aug 23% 0 5.9
Sep 23% 0 4.4
Oct 38% 0 7.2
Nov 32% 0 5
Dec 38% 0 2.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 11 0 2
Feb 10 0 1.8
Mar 13 0 4.1
Apr 19 0 8.1
May 26 0 15.5
Jun 21 0 10.4
Jul 18 0 7.6
Aug 23 0 15
Sep 23 0 11.2
Oct 38 0 18.3
Nov 32 0 12.7
Dec 38 0 7.1

 

Humidity and Wind

Roseau has some very humid months, and above average humidity throughout the year. The least humid month is March (62.3% relative humidity), and the most humid month is October (72.2%).

Wind in Roseau is usually stronger than many places. The windiest month is July, followed by February and January. July’s average wind speed of around 14.3 knots (16.5 MPH or 26.5 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late January where average top sustained speeds reach 21.4 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Roseau.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 12.7 Significant breeze 15.9 Significant breeze
Feb 12.9 Significant breeze 15.3 Significant breeze
Mar 12 Significant breeze 15.1 Significant breeze
Apr 12.7 Significant breeze 15.2 Significant breeze
May 11.5 Significant breeze 13.8 Significant breeze
Jun 11.4 Significant breeze 13.8 Significant breeze
Jul 14.3 Significant breeze 16.5 Significant breeze
Aug 12.2 Significant breeze 15.1 Significant breeze
Sep 10.2 Gentle breeze 12.8 Significant breeze
Oct 9.6 Gentle breeze 12 Significant breeze
Nov 10.1 Gentle breeze 12.4 Significant breeze
Dec 11.9 Significant breeze 14.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 67.6%
Feb 64.3%
Mar 62.3%
Apr 65.9%
May 71.6%
Jun 68.3%
Jul 67%
Aug 67%
Sep 70.1%
Oct 72.2%
Nov 66%
Dec 65.2%

 

Is it Safe to Travel to Roseau?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Dominica; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 28, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Roseau, Dominica is February, followed by July and November. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Roseau in September. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is slightly extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 69 in September means 69% of the tourists vs. February.

 

 

Overall Roseau Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 86.7°F (30.4°C) and 81.3°F (27.4°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 8 days of significant precipitation per month. Spring is fairly slow for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 5 to 7 days of precipitation per month. June – August is the second busiest season for tourism in Roseau, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 90.6°F (32.6°C) and 82.5°F (28.1°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 7 to 12 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is perfect this time of year in Roseau to be enjoyable for warm weather travelers. The average high during this season is between 84.8°F (29.3°C) and 82.4°F (28°C). On average, it rains or snows a fair amount: 3 to 12 times per month. These times of year are the busiest with tourists.

 

Best Times to TravelDominica › Roseau, Dominica